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Finding the Fourth Proportional to 16.91, 23.32 and 10.35

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Solution

The fourth proportional to 16.91, 23.32 and 10.35 is: 14.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.91 : 23.32 = 10.35 : x
  2. Step 2: Convert to fraction form
    16.91/23.32 = 10.35/x
  3. Step 3: Cross multiply
    16.91x = 23.32 × 10.35
  4. Step 4: Simplify right side
    16.91x = 241.40
  5. Step 5: Solve for x
    x = 241.40/16.91
  6. Step 6: Final answer
    x = 14.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.